North Korea claimed to have tested its first intercontinental ballistic missile in a launch Tuesday, a potential game-changing development in its push to militarily challenge Washington — but a declaration that conflicts with earlier South Korean and U.S. assessments that it had an intermediate range.

North Korea claimed to have tested its first intercontinental ballistic missile in a launch Tuesday, a potential game-changing development in its push to militarily challenge Washington — but a declaration that conflicts with earlier South Korean and U.S. assessments that it had an intermediate range.